snappyCompressFrom method
Appends the block-format compression of source.
Implementation
void snappyCompressFrom(Bytes source, {int level = 1}) {
final Uint8List input = source.asUint8List();
final Uint8List spare = spareView(Snappy.maxCompressedLength(input.length));
final int written = Snappy.compressInto(input, spare, level: level);
advance(written);
}